There are total 3 hours or 180 minutes from 7pm to 10pm. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 6AM to 10PM | 9AM to 1PM | 12AM to 7PM |
| 5PM to 12AM | 4AM to 11PM | 9PM to 3AM |
| 10AM to 10PM | 12PM to 3AM | 4PM to 10AM |
| 12AM to 2AM | 2AM to 11PM | 3AM to 9AM |
| 6PM to 12PM | 5PM to 1AM | 5AM to 10AM |
| 6AM to 4AM | 2PM to 5AM | 10AM to 1PM |
